PT-2026-36438 · Linux · Linux Kernel

CVE-2026-43021

·

Published

2026-03-25

·

Updated

2026-08-25

CVSS v3.1

7.0

High

VectorAV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A memory leak occurs in the Bluetooth component when the hci cmd sync queue once() function returns an error. In such cases, the destroy callback is not triggered, leading to leaking references and memory.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Leak

Missing Release of Resource after Effective Lifetime

Found an issue in the description? Have something to add? Feel free to write us 👾

Weakness Enumeration

Related Identifiers

BDU:2026-06502
CVE-2026-43021

Affected Products

Linux Kernel